+/*
+ * Copyright (c) 2014, 2015 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
package org.opendaylight.controller.cluster.datastore;
import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
import akka.actor.ActorSystem;
import akka.actor.AddressFromURIString;
import akka.actor.Props;
+import akka.actor.Status;
import akka.cluster.Cluster;
import akka.cluster.ClusterEvent;
import akka.dispatch.Dispatchers;
import com.google.common.base.Optional;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Sets;
import com.google.common.util.concurrent.Uninterruptibles;
import com.typesafe.config.ConfigFactory;
+import java.net.URI;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;
+import org.opendaylight.controller.cluster.datastore.config.Configuration;
+import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl;
+import org.opendaylight.controller.cluster.datastore.config.EmptyModuleShardConfigProvider;
+import org.opendaylight.controller.cluster.datastore.config.ModuleShardConfiguration;
import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardIdentifier;
import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
import org.opendaylight.controller.cluster.datastore.messages.ActorInitialized;
+import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
+import org.opendaylight.controller.cluster.datastore.messages.CreateShard;
+import org.opendaylight.controller.cluster.datastore.messages.CreateShardReply;
import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
import org.opendaylight.controller.cluster.datastore.messages.FindPrimary;
import org.opendaylight.controller.cluster.datastore.messages.LocalPrimaryShardFound;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
+import org.opendaylight.controller.cluster.datastore.messages.PeerDown;
+import org.opendaylight.controller.cluster.datastore.messages.PeerUp;
import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
import org.opendaylight.controller.cluster.datastore.messages.RemotePrimaryShardFound;
+import org.opendaylight.controller.cluster.datastore.messages.RemoveShardReplica;
import org.opendaylight.controller.cluster.datastore.messages.ShardLeaderStateChanged;
+import org.opendaylight.controller.cluster.datastore.messages.SwitchShardBehavior;
import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
-import org.opendaylight.controller.cluster.datastore.utils.MessageCollectorActor;
import org.opendaylight.controller.cluster.datastore.utils.MockClusterWrapper;
import org.opendaylight.controller.cluster.datastore.utils.MockConfiguration;
import org.opendaylight.controller.cluster.datastore.utils.PrimaryShardInfoFutureCache;
import org.opendaylight.controller.cluster.notifications.RoleChangeNotification;
import org.opendaylight.controller.cluster.raft.RaftState;
import org.opendaylight.controller.cluster.raft.base.messages.FollowerInitialSyncUpStatus;
+import org.opendaylight.controller.cluster.raft.base.messages.SwitchBehavior;
+import org.opendaylight.controller.cluster.raft.messages.AddServer;
+import org.opendaylight.controller.cluster.raft.messages.AddServerReply;
+import org.opendaylight.controller.cluster.raft.messages.ServerChangeStatus;
import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
+import org.opendaylight.controller.cluster.raft.utils.MessageCollectorActor;
import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;
private static TestActorRef<MessageCollectorActor> mockShardActor;
+ private static String mockShardName;
+
private final DatastoreContext.Builder datastoreContextBuilder = DatastoreContext.newBuilder().
- dataStoreType(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS);
+ dataStoreType(shardMrgIDSuffix).shardInitializationTimeout(600, TimeUnit.MILLISECONDS)
+ .shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(6);
private static ActorRef newMockShardActor(ActorSystem system, String shardName, String memberName) {
String name = new ShardIdentifier(shardName, memberName,"config").toString();
InMemoryJournal.clear();
if(mockShardActor == null) {
- String name = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1", "config").toString();
- mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), name);
+ mockShardName = new ShardIdentifier(Shard.DEFAULT_NAME, "member-1", "config").toString();
+ mockShardActor = TestActorRef.create(getSystem(), Props.create(MessageCollectorActor.class), mockShardName);
}
mockShardActor.underlyingActor().clear();
InMemoryJournal.clear();
}
- private Props newShardMgrProps(boolean persistent) {
- return ShardManager.props(new MockClusterWrapper(), new MockConfiguration(),
- datastoreContextBuilder.persistent(persistent).build(), ready, primaryShardInfoCache);
+ private Props newShardMgrProps() {
+ return newShardMgrProps(new MockConfiguration());
+ }
+
+ private Props newShardMgrProps(Configuration config) {
+ return ShardManager.props(new MockClusterWrapper(), config, datastoreContextBuilder.build(), ready,
+ primaryShardInfoCache);
}
private Props newPropsShardMgrWithMockShardActor() {
}};
}
+ @Test
+ public void testOnReceiveFindPrimaryWaitForReadyWithIsolatedLeaderShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+ shardManager.tell(new RoleChangeNotification("member-1-shard-default-" + shardMrgIDSuffix,
+ null, RaftState.IsolatedLeader.name()), mockShardActor);
+
+ shardManager.tell(new FindPrimary(Shard.DEFAULT_NAME, true), getRef());
+
+ expectMsgClass(duration("2 seconds"), NoShardLeaderException.class);
+ }};
+ }
+
@Test
public void testOnReceiveFindPrimaryWaitForReadyWithNoRoleShard() throws Exception {
new JavaTestKit(getSystem()) {{
shardManager1.underlyingActor().waitForUnreachableMember();
+ PeerDown peerDown = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class);
+ assertEquals("getMemberName", "member-2", peerDown.getMemberName());
+ MessageCollectorActor.clearMessages(mockShardActor1);
+
+ shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
+ createMemberRemoved("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerDown.class);
+
shardManager1.tell(new FindPrimary("default", true), getRef());
expectMsgClass(duration("5 seconds"), NoShardLeaderException.class);
shardManager1.underlyingActor().waitForReachableMember();
+ PeerUp peerUp = MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class);
+ assertEquals("getMemberName", "member-2", peerUp.getMemberName());
+ MessageCollectorActor.clearMessages(mockShardActor1);
+
shardManager1.tell(new FindPrimary("default", true), getRef());
RemotePrimaryShardFound found1 = expectMsgClass(duration("5 seconds"), RemotePrimaryShardFound.class);
String path1 = found1.getPrimaryPath();
assertTrue("Unexpected primary path " + path1, path1.contains("member-2-shard-default-config"));
+ shardManager1.underlyingActor().onReceiveCommand(MockClusterWrapper.
+ createMemberUp("member-2", "akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ MessageCollectorActor.expectFirstMatching(mockShardActor1, PeerUp.class);
+
}};
JavaTestKit.shutdownActorSystem(system1);
public void testRoleChangeNotificationAndShardLeaderStateChangedReleaseReady() throws Exception {
new JavaTestKit(getSystem()) {
{
- TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
public void testRoleChangeNotificationToFollowerWithShardLeaderStateChangedReleaseReady() throws Exception {
new JavaTestKit(getSystem()) {
{
- TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
public void testReadyCountDownForMemberUpAfterLeaderStateChanged() throws Exception {
new JavaTestKit(getSystem()) {
{
- TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
String memberId = "member-1-shard-default-" + shardMrgIDSuffix;
shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
public void testRoleChangeNotificationDoNothingForUnknownShard() throws Exception {
new JavaTestKit(getSystem()) {
{
- TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps(true));
+ TestActorRef<ShardManager> shardManager = TestActorRef.create(getSystem(), newShardMgrProps());
shardManager.underlyingActor().onReceiveCommand(new RoleChangeNotification(
"unknown", RaftState.Candidate.name(), RaftState.Leader.name()));
@Test
public void testByDefaultSyncStatusIsFalse() throws Exception{
- final Props persistentProps = newShardMgrProps(true);
+ final Props persistentProps = newShardMgrProps();
final TestActorRef<ShardManager> shardManager =
TestActorRef.create(getSystem(), persistentProps);
@Test
public void testWhenShardIsCandidateSyncStatusIsFalse() throws Exception{
- final Props persistentProps = newShardMgrProps(true);
+ final Props persistentProps = newShardMgrProps();
final TestActorRef<ShardManager> shardManager =
TestActorRef.create(getSystem(), persistentProps);
}
+ @Test
+ public void testOnReceiveSwitchShardBehavior() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ final ActorRef shardManager = getSystem().actorOf(newPropsShardMgrWithMockShardActor());
+
+ shardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ shardManager.tell(new ActorInitialized(), mockShardActor);
+
+ shardManager.tell(new SwitchShardBehavior(mockShardName, "Leader", 1000), getRef());
+
+ SwitchBehavior switchBehavior = MessageCollectorActor.expectFirstMatching(mockShardActor, SwitchBehavior.class);
+
+ assertEquals(RaftState.Leader, switchBehavior.getNewState());
+ assertEquals(1000, switchBehavior.getNewTerm());
+ }};
+ }
+
+ @Test
+ public void testOnReceiveCreateShard() {
+ new JavaTestKit(getSystem()) {{
+ datastoreContextBuilder.shardInitializationTimeout(1, TimeUnit.MINUTES).persistent(true);
+
+ ActorRef shardManager = getSystem().actorOf(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ SchemaContext schemaContext = TestModel.createTestContext();
+ shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
+
+ DatastoreContext datastoreContext = DatastoreContext.newBuilder().shardElectionTimeoutFactor(100).
+ persistent(false).build();
+ TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
+
+ ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
+ "foo", null, Arrays.asList("member-1", "member-5", "member-6"));
+ shardManager.tell(new CreateShard(config, shardPropsCreator, datastoreContext), getRef());
+
+ expectMsgClass(duration("5 seconds"), CreateShardReply.class);
+
+ shardManager.tell(new FindLocalShard("foo", true), getRef());
+
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertEquals("isRecoveryApplicable", false, shardPropsCreator.datastoreContext.isPersistent());
+ assertTrue("Epxected ShardPeerAddressResolver", shardPropsCreator.datastoreContext.getShardRaftConfig().
+ getPeerAddressResolver() instanceof ShardPeerAddressResolver);
+ assertEquals("peerMembers", Sets.newHashSet(new ShardIdentifier("foo", "member-5", shardMrgIDSuffix).toString(),
+ new ShardIdentifier("foo", "member-6", shardMrgIDSuffix).toString()),
+ shardPropsCreator.peerAddresses.keySet());
+ assertEquals("ShardIdentifier", new ShardIdentifier("foo", "member-1", shardMrgIDSuffix),
+ shardPropsCreator.shardId);
+ assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
+
+ // Send CreateShard with same name - should fail.
+
+ shardManager.tell(new CreateShard(config, shardPropsCreator, null), getRef());
+
+ expectMsgClass(duration("5 seconds"), akka.actor.Status.Failure.class);
+ }};
+ }
+
+ @Test
+ public void testOnReceiveCreateShardWithNoInitialSchemaContext() {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = getSystem().actorOf(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ TestShardPropsCreator shardPropsCreator = new TestShardPropsCreator();
+
+ ModuleShardConfiguration config = new ModuleShardConfiguration(URI.create("foo-ns"), "foo-module",
+ "foo", null, Arrays.asList("member-1"));
+ shardManager.tell(new CreateShard(config, shardPropsCreator, null), getRef());
+
+ expectMsgClass(duration("5 seconds"), CreateShardReply.class);
+
+ SchemaContext schemaContext = TestModel.createTestContext();
+ shardManager.tell(new UpdateSchemaContext(schemaContext), ActorRef.noSender());
+
+ shardManager.tell(new FindLocalShard("foo", true), getRef());
+
+ expectMsgClass(duration("5 seconds"), LocalShardFound.class);
+
+ assertSame("schemaContext", schemaContext, shardPropsCreator.schemaContext);
+ assertNotNull("schemaContext is null", shardPropsCreator.datastoreContext);
+ }};
+ }
+
+ @Test
+ public void testAddShardReplicaForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = getSystem().actorOf(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ shardManager.tell(new AddShardReplica("model-inventory"), getRef());
+ Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class);
+
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof IllegalArgumentException));
+ }};
+ }
+
+ @Test
+ public void testAddShardReplicaForAlreadyCreatedShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = getSystem().actorOf(newShardMgrProps());
+ shardManager.tell(new AddShardReplica("default"), getRef());
+ Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof IllegalArgumentException));
+ }};
+ }
+
+ @Test
+ public void testAddShardReplica() throws Exception {
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
+ Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+ ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
+ final TestActorRef<ForwardingShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newPropsShardMgrWithMockShardActor("shardManager1", mockDefaultShardActor,
+ new ClusterWrapperImpl(system1), mockConfig), shardManagerID);
+
+ // Create an ActorSystem ShardManager actor for member-2.
+ final ActorSystem system2 = ActorSystem.create("cluster-test",
+ ConfigFactory.load().getConfig("Member2"));
+ Cluster.get(system2).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+
+ String name = new ShardIdentifier("astronauts", "member-2", "config").toString();
+ final TestActorRef<MockRespondActor> mockShardLeaderActor =
+ TestActorRef.create(system2, Props.create(MockRespondActor.class), name);
+ final TestActorRef<ForwardingShardManager> leaderShardManager = TestActorRef.create(system2,
+ newPropsShardMgrWithMockShardActor("shardManager2", mockShardLeaderActor,
+ new ClusterWrapperImpl(system2), mockConfig), shardManagerID);
+
+ new JavaTestKit(system1) {{
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ leaderShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+
+ leaderShardManager.tell(new ActorInitialized(), mockShardLeaderActor);
+
+ String memberId2 = "member-2-shard-astronauts-" + shardMrgIDSuffix;
+ short leaderVersion = DataStoreVersions.CURRENT_VERSION - 1;
+ leaderShardManager.tell(new ShardLeaderStateChanged(memberId2, memberId2,
+ Optional.of(mock(DataTree.class)), leaderVersion), mockShardLeaderActor);
+ leaderShardManager.tell(new RoleChangeNotification(memberId2,
+ RaftState.Candidate.name(), RaftState.Leader.name()), mockShardLeaderActor);
+
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
+ leaderShardManager.underlyingActor().waitForMemberUp();
+
+ //construct a mock response message
+ AddServerReply response = new AddServerReply(ServerChangeStatus.OK, memberId2);
+ mockShardLeaderActor.underlyingActor().updateResponse(response);
+ newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef());
+ AddServer addServerMsg = MessageCollectorActor.expectFirstMatching(mockShardLeaderActor,
+ AddServer.class);
+ String addServerId = "member-1-shard-astronauts-" + shardMrgIDSuffix;
+ assertEquals("AddServer serverId", addServerId, addServerMsg.getNewServerId());
+
+ expectMsgClass(duration("5 seconds"), Status.Success.class);
+ }};
+
+ JavaTestKit.shutdownActorSystem(system1);
+ JavaTestKit.shutdownActorSystem(system2);
+ }
+
+ @Test
+ public void testAddShardReplicaWithFindPrimaryTimeout() throws Exception {
+ MockConfiguration mockConfig =
+ new MockConfiguration(ImmutableMap.<String, List<String>>builder().
+ put("default", Arrays.asList("member-1", "member-2")).
+ put("astronauts", Arrays.asList("member-2")).build());
+
+ String shardManagerID = ShardManagerIdentifier.builder().type(shardMrgIDSuffix).build().toString();
+
+ // Create an ActorSystem ShardManager actor for member-1.
+ final ActorSystem system1 = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
+ Cluster.get(system1).join(AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558"));
+ ActorRef mockDefaultShardActor = newMockShardActor(system1, Shard.DEFAULT_NAME, "member-1");
+ final TestActorRef<ForwardingShardManager> newReplicaShardManager = TestActorRef.create(system1,
+ newPropsShardMgrWithMockShardActor("shardManager1", mockDefaultShardActor,
+ new ClusterWrapperImpl(system1), mockConfig), shardManagerID);
+
+ new JavaTestKit(system1) {{
+
+ newReplicaShardManager.tell(new UpdateSchemaContext(TestModel.createTestContext()), getRef());
+ MockClusterWrapper.sendMemberUp(newReplicaShardManager, "member-2", getRef().path().toString());
+ newReplicaShardManager.underlyingActor().waitForMemberUp();
+
+ newReplicaShardManager.tell(new AddShardReplica("astronauts"), getRef());
+ Status.Failure resp = expectMsgClass(duration("5 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof RuntimeException));
+ }};
+
+ JavaTestKit.shutdownActorSystem(system1);
+ }
+
+ @Test
+ public void testRemoveShardReplicaForNonExistentShard() throws Exception {
+ new JavaTestKit(getSystem()) {{
+ ActorRef shardManager = getSystem().actorOf(newShardMgrProps(
+ new ConfigurationImpl(new EmptyModuleShardConfigProvider())));
+
+ shardManager.tell(new RemoveShardReplica("model-inventory"), getRef());
+ Status.Failure resp = expectMsgClass(duration("2 seconds"), Status.Failure.class);
+ assertEquals("Failure obtained", true,
+ (resp.cause() instanceof IllegalArgumentException));
+ }};
+
+ }
+
+ private static class TestShardPropsCreator implements ShardPropsCreator {
+ ShardIdentifier shardId;
+ Map<String, String> peerAddresses;
+ SchemaContext schemaContext;
+ DatastoreContext datastoreContext;
+
+ @Override
+ public Props newProps(ShardIdentifier shardId, Map<String, String> peerAddresses,
+ DatastoreContext datastoreContext, SchemaContext schemaContext) {
+ this.shardId = shardId;
+ this.peerAddresses = peerAddresses;
+ this.schemaContext = schemaContext;
+ this.datastoreContext = datastoreContext;
+ return Shard.props(shardId, peerAddresses, datastoreContext, schemaContext);
+ }
+
+ }
+
private static class TestShardManager extends ShardManager {
private final CountDownLatch recoveryComplete = new CountDownLatch(1);
findPrimaryMessageReceived = new CountDownLatch(1);
}
}
+
+ private static class MockRespondActor extends MessageCollectorActor {
+
+ private Object responseMsg;
+
+ public void updateResponse(Object response) {
+ responseMsg = response;
+ }
+
+ @Override
+ public void onReceive(Object message) throws Exception {
+ super.onReceive(message);
+ if (message instanceof AddServer) {
+ if (responseMsg != null) {
+ getSender().tell(responseMsg, getSelf());
+ responseMsg = null;
+ }
+ }
+ }
+ }
}